arch/powerpc/platforms/pseries/cc_platform.c
Source file repositories/reference/linux-study-clean/arch/powerpc/platforms/pseries/cc_platform.c
File Facts
- System
- Linux kernel
- Corpus path
arch/powerpc/platforms/pseries/cc_platform.c- Extension
.c- Size
- 496 bytes
- Lines
- 27
- Domain
- Architecture Layer
- Bucket
- arch/powerpc
- Inferred role
- Architecture Layer: exported/initcall integration point
- Status
- integration implementation candidate
Why This File Exists
CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
- CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
- Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
Dependency Surface
linux/export.hlinux/cc_platform.hasm/machdep.hasm/svm.h
Detected Declarations
function Copyrightexport cc_platform_has
Annotated Snippet
// SPDX-License-Identifier: GPL-2.0-only
/*
* Confidential Computing Platform Capability checks
*
* Copyright (C) 2021 Advanced Micro Devices, Inc.
*
* Author: Tom Lendacky <thomas.lendacky@amd.com>
*/
#include <linux/export.h>
#include <linux/cc_platform.h>
#include <asm/machdep.h>
#include <asm/svm.h>
bool cc_platform_has(enum cc_attr attr)
{
switch (attr) {
case CC_ATTR_MEM_ENCRYPT:
return is_secure_guest();
default:
return false;
}
}
EXPORT_SYMBOL_GPL(cc_platform_has);
Annotation
- Immediate include surface: `linux/export.h`, `linux/cc_platform.h`, `asm/machdep.h`, `asm/svm.h`.
- Detected declarations: `function Copyright`, `export cc_platform_has`.
- Atlas domain: Architecture Layer / arch/powerpc.
- Implementation status: integration implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.